Best Guild Rep Farming?

EDIT: Disregard. With tabard just running around doing the crest\\valorstone pick ups were enough to Honored for the achievement.

Since you folks were so helpful with my last question, I have a new conundrum for the hive mind: What's the best option for farming guild rep? I now have enough alts that will eventually be coming over from remix to get Classy for my personal guild.

Obviously, it's going to require a lot of grinding. I've already bought a bunch of guild tabards to speed things up, but I'm wondering if I'm missing anything easy.